4)Genealogical and Personal History of Wester Pennsylvania,(see Isaac Dushane, b.1790).

5)History of Westmoreland County, Pennsylvania

Information comes primarily from the wills cited above.In the wills, Isaac names his wife, Elizabeth as sole heir to his estate.Elizabeth's will, in turn, names Isaac Dushane and Elizabeth Dushane, her grandchildren, as heirs.It also mentions that her grandchildren's father is Andrew Petersen Dushane.Each will names Christopher Vandegrift as executor or as witness.Isaac's will names Anthony Dushane as witness.

Elizabeth's will goes into great detail regarding her desire to free her slaves and to bequeath them land, housing, housewares, and farming tools.